I have to agree and disagree with
@ShLUbY yes focus on your soil first and for for most and the plants take care of them selves. I was talking to
@papapayne just the other day about how i obsess about my soil, and have not found a bag mix i like. Funny part is i can make several mixes depending on what i can find at the time but cant find a bag mix. That said IMO you do still need teas because when you "brew" your tea you are growing colonies of arobic bacteria as well as separating fungal growths that you then introduce to soil. I also make other batchs of tea that are specific fungal teas as well as enzymes teas. I introduce pest, pm, and bud rot controls in them by adding og bio war roots and Actinovate in sometimes. I am always brewing something i just change the ingredients up.